Cap for bottles or jars.



H. H. ROBERTSON. GAP FOR BOTTLES OR JARS. APPLICATION FILED JULY s,1913.

wuautoz Patented Mar. 23, 1915.

. TED "STATES PATENT OFFICE.

HUGH H. ROBERTSON, OF NEW YORK, N. Y., ASSIGNOR TO CONTINENTAL CANCOMPANY, INCORPORATED, OF SYRACUSE, NEW YORK, A CORPORATION OF NEW YORK.

To all whom it may concern: I

Be it known that I, HUGH H. ROBERTSON,

a citizen of the United States, residing at New York, in the county ofNew York,

State of New York, have invented certain new and useful Improvements inCaps for Bottles or Jars, of-which the following is a description,reference being had-to the accompanying drawing and to the 'figures ofreference marked thereon.

The invention relates to' new and useful improvements in caps forbottles or jars and more particularly to caps made from sheet metal bycutting and bending in contradistinetion to being drawn.

The purpose of the invention is .to provide a metal cap whic may be madefrom sheet metal which has b n lacquered prior to the forming of the capand to produce a cap wherein the exposed surfaces in the finished capare entirely covered by the lacquer.

In the drawings, which show by way of illustration one embodiment of theinvention, Figure 1 shows a sheet metal blank bent to form thecylindrical body portion of the cap Fig. 2 is a top plan view of thesame; Fig. 3 is a longitudinal sectional view, showing the top insertedin the cylindrical body portion and prior to the bending of the bodyportion and top to join the same; Fig. 4: is a longitudinal sectionalview through the finished cap; Fig. 5 is a side view of the same; andFig. 6 is a top "plan view. Fig. .7 is a detail in section showing amodified form of cap.

The invention consists generally in a sheet metal cap which is made fromsheet metal having its surfaces coated. with lacquer prior to theformation of the cap and .wherein the cap is formed by cutting andbending the metal in contradistinetion to drawing the metal. The bodyportion of the cap is cut from the sheet metal and formed into acylinder and its edges are unitedin such a manner as to conceal andcover the raw edges of the metal formed in the 'cuttihg of the blank.The top of the cap is also .cut from thelacquered sheet and is'attachedto the cylindrical body portion in Specification of Letters Patent.

quered.

C AP FOR BOTTLES OR JZARS.

such a manner that the raw edges of the metal formed in the cutting ofthe topand the-raw edges of the material atthe upper edge of thecylindrical body portion are of the cylindrical body portion may also beformed so as to cover the raw edges of Patented Mar. 23, 19-15..Application fil'ed July 3,1913. Serial No; 777,283. I A

both. concealed or covered. The lower edge the material so that in thefinished cap all i the exposed surfaces ofthe cap will be lac- Referringmore in detail to the drawing, my improved cap consists of a'bodyportion 1 and a top 2. This body portion 1 is formed by cutting a blankfrom a sheet of as above noted. The blank is then rolled intocylindrical form and the meeting edges metal after the same is coatedwith lacquer joined by interlocking the edges, as clearly shown in Fig.2, so that the edge 3 entirely covers and conceals the raw edge 4:,while the folded edge 5 entirely covers and conceals the raw edge 6. Itwill be understood that by the-raw edge of the nietal, I' have referenceto the exposed steel formed in the cutting of the coated sheet of steel.raw edges if exposed will rust and corrode, but by the aboveconstruction of seam, I am able to entirely cover and conceal these rawedges of the metal. I

The side seam 7 of the cylindrical body portion '1 terminates short ofthe top, as clearly shown in Fig. 1. The top for the body portionis alsocut from a sheet of metal These coated with lacquer, andsaid sheet mayalso be ornamented in any desired way, as illustrated for example inFig. 6. It will be ,un-

derstood that the sheet. after being coated" is ornamented, and then thedisks to form the tops are cut, so that the ornamentation is properlycentered in each disk. The disk forming the top 2 is bent so that theedges are turned upwardly as at 8, (see Fig. 3).

This top is then inserted in the cylindrical body portion 1 of the cap,and is crowded,-

into the same a sufficient distance so the edge 9 of the body portion.extends above the extreme upperedge 10 of the top-2. The upper edge ofthe body portion .9 is then bent by means of .a die or otherwise, aboutthe edge 8 of the top. At the same time that this die is operating tofold or bend the upper edge of the body portion over the upwardlyextending edge of the top, the,

also bends the metal so as to further conceal and cover the raw edge ofthe metal at the upper edge of the body of the cap.

Referring to Fig. 4, it will be noted that the edge 8 is folded withinthe bent over part .of the upper edge of the body of the cap, while theedge 9 of the bodyof the cap is folded in between the edgeS and the up-1 wardly crowned part of the top, so that both of these raw edges, asabove noted, are en-' tirely covered and concealed. The cap may be thenformed with a screw thread 12, by which it is attached to a suitablescrew thread at the mouth of the bottle or jar in the usual manner. Itmay also be formed with vertical ribs, as at 13, which assist in turningthe cap to screw the same on or off from the bottle or jar. Thesevertical ribs and the screw threads of the cap, are of the usualconstruction, and have no part in my present invention. r v From theabove construction, it will be apparent that I have provided a metal capwherein the entire cap 'is made bycutting and bending the metal and thetop is'joined firmly to the body portion of the cap by a seam whereinthe raw edges of the material areentirel concealed andcover ed.

In Fig. of the drawings I have shown a slightly-modified form of theinvention, as the cap, as shown illthlS figure, has the lower edgethereof rolled or folded, as at 14, so as to prevent forming a .sharpedge of metal atthe lower edge of the'cap, and, furthermore, tosubstantially conceal and cover the exposed or raw .edge of metal formedin the cutting of the blank for the.

body portion of the cap. c

From the above construction it"will be apparent that in Fig. 7 I haveshown a construction of cap wherein all the rawedges of metal formed incutting the metal from the sheet are substantially covered andconcealed. v

While I have described my invention as particularly adapted forforming abottle cap from lacquered sheet metal, it is tobe understood that themetal may be coated with other substances than lacquer and if metal isused it must be of a character to providea non corroding surface. a

It is obvious that mmorchanges in the details of construction may bemade without departing from the spirit of the invention as set forth inthe appended claims.

Having thus described my invention, what I claim as new anddesireto-secure by Letters Patent, is:

L A lacquered sheetmetal cap for bottles or jars comprising a bodyportion cut from sheet metal lacquered on both surfaces thereofthroughout, said body portion being bent into cylindrical form andhaving the meeting edges thereof joined by an interfolded seam whichconceals and covers the exposed raw edges of the metal formed in cuttingthe body portion,'and a top foreclosing the end of said body portion,said top being cut from a sheet of metal lacquered on both sidesthereofthroughout, said top being joined to the body portion by aninterfolded seam which conceals and covers the exposed raw upper edge ofthe metal of the body portion and the exposed raw edge of the metal ofthe top formed in out ting the top.

2. A lacquered sheet metal cap for bottles or jars comprising a bodyportion cut from sheet metal lacquered on both surfaces thereofthroughout, said body portion being bent into cylindrical form andhaving the meeting edges thereof joined by an interfolded seam whichconceals and covers the exposed raw edges of the metal formed in cuttingthe body portion, and a top for closing the end of said body portion,said top being cut from a sheet of metal lacquered on both sides thereofthroughout, said top being joined to the body portion by an interfoldedseam which conceals andpcovers the exposed raw upper edge of the metalof the body portion and the exposed raw edge of the metal of the .topformed in cutting the top, said top being bent so as to besubstantiallyflush with the extreme upper part of the seam joining the top to thebody portion, the lower edge of said body portion of the metal at thebottom of the body portion and to stiffen the body of the cap, said bodyportion having a screw-thread formed therein. I i

3. A sheet metal cap for bottles comprising a body portion cut fromsheet metal coated on both surfaces-thereof throughout, said bodyportion being bent into cylindrical form and, having the meeting edgesthereof joined by an interfolded seam which conceals and covers theexposed raw edges of themetal formed in cutting the body portion, and atop for closing the end of said body portion, said top being cut from asheet of metal coated on both sides thereof throughout, said top beingjoined to the body portion by an interfolded seam which conceals-andcovers the exposed raw upper edge of the metal of the body portion andbeing bent upwardly to conceal the raw edge the exposed raw edge of themetal of the top formed in cutting the top, the lower edge of said bodyportion being bent upwardly to conceal the raw edge of the metal at thebottom of the body portion and to stiffen the body of the cap, said bodyportion having a screw-thread formed therein.

HUGH H, ROBERTSON.-

Witnesses:

F. M. AssMANN, WALTER Soon.

